1.Multi-language translation 2.WILO pump SR 15/6 3.Time display 4.8 solar hot water systems for choice...
1)8 solar hot water systems for choice
2)Time display
3)temperature difference circulation
4)Storage water tank over-heat protection
5)emergent stop of system over-heating
6)Frost protection of pipeline and collector
7)Three periods of time adjustable on pipe line circulation
8)Three periods of time adjustable on assistant heater
9)Holiday function
10)Anti-bacteria function
11)Three speed levels on circulation pump
12)flow rate dlsplay
13)Display system pressure
14)Multi-language translation
working station